jrhackett,

You might want to edit punctuations in your post - to make individual sentences.

Jerry knows more about Hydra-Matics than anyone here.

You might/might-not be interested in this long-winded, step-by-step rebuild of a 1954 Hydra-Matic transmission. Unfortunately, it does not show the complicated shift-linkages.

I cannot find an illustration of the shift linkages - maybe someone will post a web-link?